Display screen with an animated graphical user interface



FIG. 1 is a first image for a display screen with an animated graphical user interface; and,

FIG. 2 is a second image thereof.

The appearance of the animated graphical user interface sequentially transitions between FIGS. 1 and 2. The process or period in which one image transitions to another image forms no part of the claimed design.

The broken line showing of the display screen and the graphical elements in both views forms no part of the claimed design. 

CLAIM The ornamental design for a display screen with an animated graphical user interface, as shown and described. 